The teenager develop
The teenager’s sex develops a feature
Sex development includes a gonad, sexual organ, the second sex advertise for of have of development and sexual function.So-called the first sex advertise for, then birth empress can see of(like outside genitals) and see of in vivo reproductive organ;(if uterus etc.)The second sex advertise for is develop in the youth the mid-term performance come out of men and women’s morphological characteristic(if the man grows a beard, woman mamma, breast development etc.), the second sex advertise for again call”advertise for after the hair” or”secondary sexual characteristics”.
Boy the second sex advertise for a development performance to become loud and clear and deep and low for the voice, neck exact center proptosis laryngeal prominence, grow a proptosis beard on the face, also grow a proptosis axillary hairs, pubic hairs on the body.And skeletal bulky, muscularity, the shape becomes tall and big in stature, gradually become male adult’s feature, boy at 14~16 years old also appear a first time nocturnal emission.The sexual organ also quickly develops close adult’s degree.
The girl is in the youth development phase, the pelvis changes gradually breadth, the mamma, breast starts develop, the bark descends a fat to increase, voice modulation get point Gao, appear a pubic hairs, axillary hairs on the body, in addition to these the second sex disease outside, the girl appears a menstruation, mensis(?) in the about 13 years old beginning and menstruation, mensis(?) call it as menarche for the first time.Because these varieties make girl’s body appear a thoracic part plentiful full, hip mutation circle, the lumbar part is opposite thinner, the female is the special physique.What to need to be notice BE, the menarche is a puberty sexual function development mature of importance symbolize it a, but this not that the clear and female sexual function has already completely developped mature.
The Nutrition is the material basal of sex development
The female menarche is a puberty mature importance of the sexual function development to symbolize it a.A hundred years come and the age of female menarche contains gradual elevated trend.From the ? 1860~1960 ? year, the female menarche age of the Western European countries equally every decade four months in advance.At the our country, Peking, Shanghai etc. the data of the ground also shows:The female menarche age also has elevated trend.Female menarche age in Peking is 14.16 years old in 1962, 1991 is 12.50 years old, from 30 years,s for 1962~1991 years, the menarche age raised 1.66 years old.The exaltation of menarche age theres is much factor influence, but is germane with Nutrition’s conditional improvement.The Nutrition has already emphasized to want an action in the youth the development, the Nutrition lack direct influence development, or postpone sex development, even result in development disorder.So the men and women teenager of youth development phase should notice the complement of calorie, provide abundant Nutrition vegetable, promise that the teenager grows a development demand.Particularly notice just the right amount of fat to absorb.Because the fat has certain relation to teenager’s development.
Be studied a confirmation by expert, when girl the in vivo amount of fat reaches certain degree, just start a menarche.When puberty in front and back serious dystrophy, the companion is extremely emaciated, or because of afraid fat diet a girl who appear the serious dystrophy to easily appear a menstruation, mensis(?) to postpone, amenorrhea etc. disease, affect bodily of normal development.
Develop earlier period(girl menarche the first 2~3 years) in the youth should let the young child save some Nutrition vegetables to promise a puberty development.Should rectify to be fastidious about food, the habit of partial eclipse, particularly some girls are afraid fat diet, make the calorie, protein, fat absorb shortage, body development poor, the bark descends a fat little, girl mamma, breast development smaller and flat.The complexion has no Hua, manifestation not the proptosis puberty should have of the vigor booming feature.
Dystrophy and sexual precosity
Along with our country economic life level exaltation, particularly town residents Nutrition condition amendment, what to need to be notice is the phenomenon that the Nutrition excess results in “sexual precosity”.Carried on an inquisition to downtown 102710~20-year-old girls in Hangzhou City in 1988, discover that the 10-year-old girl gets into a puberty development to have 9.02%, 11 years old have 20.9%, the expert thinks the hyperpyrexia quantity, high proteinase, high fat food structure and abuse a various Nutrition health care article is the factor which results in teenager’s sexual precosity.
So science Nutrition be the basal which promises that the teenager normally develops, but the not reasonable meal structure, Nutrition excess will give teenager the mind and body healthily brings bane.
